Found 49 datasets matching "δ13C".
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Bat guano is an emergent paleoenvironmental archive and isotopic compositions of bat guano have been tied to climate, vegetation, and trophic processing in isolated studies. However, a...
Search relevance: 91.21 | Views last month: 0 -
This dataset contains stable isotope (δ13C) and radioisotope (Δ14C) compositions of dissolved inorganic carbon, dissolved organic carbon, particulate organic carbon, and bed material organic...
Search relevance: 68.59 | Views last month: 0 -
To demonstrate connectivity between terrestrial and marine ecosystems, we used stable (δ13C, δ15N, δ2H) and radiogenic (∆14C) isotopes to estimate the relative contribution of glacier runoff and...
Search relevance: 59.23 | Views last month: 0 -
This dataset includes total phosphorus (TP), total nitrogen (TN), and total carbon (TC) concentrations as well as δ15N and δ13C composition, and overall C:N:P stoichiometry for adult emergent...
Search relevance: 58.94 | Views last month: 0 -
Stable carbon and hydrogen isotopic data generated by off-line preparation and dual inlet mass spectrometric analysis used the determine the recommended values for the reference materials HCG-1,...
Search relevance: 50.75 | Views last month: 0 -
This dataset contains historical measurements of radiocarbon in oceanic dissolved inorganic carbon (map of the measurement locations). The measurements were compiled and digitized from published...
Search relevance: 49.48 | Views last month: 0 -
We analyzed sequential δ13C and δ15N values along single whiskers sampled from unrelated northern fur seal pups and post-parturient females at San Miguel Island, California. The longest dorsal...
Search relevance: 48.21 | Views last month: 0 -
Four tabular datasets containing 1) 2016-2018 water quality analysis results of NO3+NO2, NH4, & Total Dissolved Phosphorus (TDP) for selected anchialine pools in Kaloko-Honokohau NHP and in...
Search relevance: 47.06 | Views last month: 1 -
In support of paleoclimatology investigations, samples of mammillary calcite, calcitic folia, and flowstone were collected by the U.S. Geological Survey in Devils Hole and Devils Hole Cave 2,...
Search relevance: 45.68 | Views last month: 0 -
The isotopic values of fossil snail shells can be important archives of past climate. Here we present the first carbon (δ13C) and oxygen (δ18O) isotope values of radiocarbon-dated and...
Search relevance: 44.76 | Views last month: 0 -
We measured foliar δ13C of Conocarpus erectus collected from Big Pine Key in 2018 as a proxy for ground water salinity.
Search relevance: 43.94 | Views last month: 1 -
This data release contains data associated with the journal article, “Comparison of δ13C Analyses on Individual Foraminifer (Orbulina universa) Shells by Secondary Ion Mass Spectrometry and...
Search relevance: 42.81 | Views last month: 1 -
Carbon and oxygen isotope data from annual tree rings in Ponderosa Pine collected in Oregon. The data was used in Ulrich, D. E. M., C. J. Still, J. R. Brooks, Y. Kim, and F. C. Meinzer. 2019....
Search relevance: 41.24 | Views last month: 0 -
This dataset contains isotope results of stable isotope (δ13C and δ15N) and radicoarbon (F14C) analyses of muscle tissue from fish collected in the nearshore Beaufort Sea, Alaska in summers 2017-2019.
Search relevance: 40.87 | Views last month: 0 -
These datasets provide raw stable isotope data collected as part of the National Wetland Condition Assessment (NWCA). δ15N and δ13C measured from 10-cm Standard Depth Soil Cores are reported for...
Search relevance: 40.27 | Views last month: 19 -
This data release contains tabular data (comma-separated-value files) of natural radiogenic isotopes of strontium, uranium, and thorium for samples of modern water, speleothems, associated with...
Search relevance: 39.26 | Views last month: 0 -
This dataset contains geochemical data (Total Inorganic Carbon, Total Organic Carbon, Total Nitrogen, δ13C of Organic Carbon, Hydrogen Index, Oxygen Index, Zirconium/Aluminum, and Magnetic...
Search relevance: 38.37 | Views last month: 0 -
Tables of U- and Th-isotopic data used to calculate uranium-series age estimates and initial 234U/238U activity ratios as well as 87Sr/86Sr, δ13C, and δ18O for samples of phreatic speleothems from...
Search relevance: 38.02 | Views last month: 0 -
This study was initiated to provide baseline data and to determine the utility of stable isotope analysis to evaluate the foraging strategies of an opportunistic reptile predator. Stable isotope...
Search relevance: 37.92 | Views last month: 0 -
The extent and temporal variability of denitrification activity was measured in Yaquina Bay, Oregon, over a year using sediment cores collected approximately monthly from August 2003 through...
Search relevance: 37.40 | Views last month: 1
